[coreboot] Re: Regarding Intel CPU frequency.

2020-04-24 Thread Paul Menzel
Dear Nitin, Am 23.04.20 um 14:35 schrieb nitin.ramesh.si...@gmail.com: I am using coreboot to boot Denverton cpu (CPU C3558) based board. Nice. Are you going to send it upstream? I can see that the cpu frequency is set to the correct value i.e. "2200 Mhz" under the coreboot logs. . " CPU

[coreboot] Re: CBFS pointer problem with SeaBios and Apollo Lake platform

2020-04-24 Thread Wolfgang Kamp - datakamp
Hello Matt, Thank you for your response. I see that SeaBIOS still can’t handle the FMAP structure. The pointer depends on the FMAP layout and this is different to chromium devices. For the UP squared board I did not find any other solution than to set CONFIG_CBFS_LOCATION=0xFFFC and to

[coreboot] Re: Regarding Intel CPU frequency.

2020-04-24 Thread nitin . ramesh . singh
HI Paul, I have tried different measures to increase the load on CPU, but still the frequency reflects the same value ie. 800Mz. My question is why this behavior is different w.r.t the one when system boots up with BIOS. When I boot with BIOS, I can see that frequency output stays at 2200Mhz.

[coreboot] Re: Regarding Intel CPU frequency.

2020-04-24 Thread Alesandar Metodiev
Hello Nitin, Since you are running Linux, do you see anything interesting in the output of dmesg? You could filter for warnings and errors by running "dmesg -l warn,err", but it might be better to provide the full log. Recently, I have started experiencing a similar issue with a i7-3720QM and

[coreboot] Re: Regarding Intel CPU frequency (Intel Denverton based)

2020-04-24 Thread Paul Menzel
Dear Nitin, Am 24.04.20 um 11:53 schrieb nitin.ramesh.si...@gmail.com: I have tried different measures to increase the load on CPU, but still the frequency reflects the same value ie. 800Mz. My question is why this behavior is different w.r.t the one when system boots up with BIOS. If you

[coreboot] Re: Regarding Intel CPU frequency (Intel Denverton based)

2020-04-24 Thread nitin . ramesh . singh
Hi Paul, As far as cpu init is concerned, I haven't modified the cpu initialization sequence for the given board. The code is located under following sub-folder "src/soc/intel/denverton_ns/cpu.c". The given CPU (CPU C3558) has 4 cores, and I am noticing the following logs while booting up,

[coreboot] Re: Regarding Intel CPU frequency (Intel Denverton based)

2020-04-24 Thread Jay Talbott
Nitin, We have encountered both of these issues and have corrected them in our own code base for a particular client. We are not in a position to upstream our changes, but I can tell you the source of each problem. 1. CPU frequency: For Denverton SKUs that do NOT support turbo mode (like the one

[coreboot] Re: Regarding Intel CPU frequency (Intel Denverton based)

2020-04-24 Thread Nitin Singh
Hi Jay, Thanks for your suggestion. I was able to figure out the given problem by inserting few debug prints under the file "cpu.c" , it seems the stepping mode is not getting set for given cpu, along with apic id coming out as 4. The observation matches with your comments as well. Once

[coreboot] Re: CBFS pointer problem with SeaBios and Apollo Lake platform

2020-04-24 Thread Matt DeVillier
On Fri, Apr 24, 2020 at 4:59 AM Wolfgang Kamp - datakamp wrote: > Hello Matt, > > > > Thank you for your response. I see that SeaBIOS still can’t handle the > FMAP structure. > > The pointer depends on the FMAP layout and this is different to chromium > devices. > > For the UP squared board I

[coreboot] Re: Planning the next coreboot release

2020-04-24 Thread Patrick Rudolph
Hi Jonathan, I'll have a look, but I cannot help on the IIO stuff, as we still don't have access to Intel's confidential documents. Kind Regards, Patrick Rudolph B.Sc. Electrical Engineering System Firmware Developer 9elements Agency GmbH, Kortumstraße 19-21, 44787 Bochum, Germany Email:

[coreboot] Re: CBFS pointer problem with SeaBios and Apollo Lake platform

2020-04-24 Thread Felix Singer
Hi, On Thu, 2020-04-23 at 08:15 +, Wolfgang Kamp - datakamp wrote: > Am I correct that the problem still exists that SeaBios can’t find > the CBFS in apl platform? I used this as workaround: https://review.coreboot.org/c/coreboot/+/32327 It requires that you put the CBFS at the end of

[coreboot] Re: libgfxinit: Panel Backlight with Apollo Lake (Broxton)

2020-04-24 Thread Nico Huber
Hello Wolfgang, On 21.04.20 16:50, Wolfgang Kamp - datakamp wrote: > I found out that the panel backlight enable function in libgfxinit for > Broxton platform (Intel x5-E3940) will not work for me. > The Backlight Enabling Sequence Description in the Intel document Doc Ref # > IHD-OS-BXT-Vol